finish method
Encode the images that were added with addFrame.
Implementation
List<int>? finish() {
List<int>? bytes;
if (output == null) {
return bytes;
}
/*if (_encodedFrames == 0) {
_writeHeader(_width, _height);
} else {
_writeGraphicsCtrlExt();
}
_addImage(_lastImage, _width, _height, _lastColorMap.colorMap, 256);
output.writeByte(TERMINATE_RECORD_TYPE);
_lastImage = null;
_encodedFrames = 0;*/
bytes = output!.getBytes();
output = null;
return bytes;
}